netdev - [PATCH 4/8] nfsd: fix default case in nfsd4_cb_sequence

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Message-Id: <20250123-nfsd-6-14-v1-4-c1137a4fa2ae@kernel.org>
Date: Thu, 23 Jan 2025 15:25:21 -0500
From: Jeff Layton <jlayton@...nel.org>
To: Chuck Lever <chuck.lever@...cle.com>, Neil Brown <neilb@...e.de>, 
 Olga Kornievskaia <okorniev@...hat.com>, Dai Ngo <Dai.Ngo@...cle.com>, 
 Tom Talpey <tom@...pey.com>, "J. Bruce Fields" <bfields@...ldses.org>, 
 Kinglong Mee <kinglongmee@...il.com>, Trond Myklebust <trondmy@...nel.org>, 
 Anna Schumaker <anna@...nel.org>, "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>
Cc: linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org, 
 netdev@...r.kernel.org, Jeff Layton <jlayton@...nel.org>
Subject: [PATCH 4/8] nfsd: fix default case in nfsd4_cb_sequence_done()

If the switch hits the default: case, then it's likely that the client
sent an unexpected error. In that case, CB_COMPOUND reply processing
should stop. Ensure that the function returns false in that case.

Fixes: 7ba6cad6c88f ("nfsd: New helper nfsd4_cb_sequence_done() for processing more cb errors")
Signed-off-by: Jeff Layton <jlayton@...nel.org>
---
 fs/nfsd/nfs4callback.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index c26ccb9485b95499fc908833a384d741e966a8db..dcd1c16ca5e6cc1928cae74b89ff4b36912503df 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -1399,6 +1399,7 @@ static bool nfsd4_cb_sequence_done(struct rpc_task *task, struct nfsd4_callback
 		rpc_delay(task, 2 * HZ);
 		return false;
 	default:
+		ret = false;
 		nfsd4_mark_cb_fault(cb->cb_clp);
 	}
 	trace_nfsd_cb_free_slot(task, cb);

-- 
2.48.1